import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Index from '../components/Index.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue'
import GoodsList from '../components/goods/List.vue'
import GoodsAdd from '../components/goods/Add.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report.vue'

Vue.use(VueRouter)

  const routes = [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    { 
      path: '/home', 
      component: Home ,
      redirect: '/index',
      children:[
        { path: '/index', component: Index},
        { path: '/users', component: Users },
        { path: '/rights', component: Rights },
        { path: '/roles', component: Roles },
        { path: '/categories', component: Cate },
        { path: '/params', component: Params },
        { path: '/goods', component: GoodsList },
        { path: '/goods/add', component: GoodsAdd },
        { path: '/orders', component: Order },
        { path: '/reports', component: Report }
      ]
    }
  ]

const router = new VueRouter({
  routes
})

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to到哪里去 from从哪里来 next回调函数，表示放行
  if(to.path === "/login") return next();
  //根据token判断是否需要跳转到登录页面
  const tokenStr = window.sessionStorage.getItem("token");
  if(!tokenStr) return next("/login");
  next();
})

export default router
